Technology They find in the tail of a dinosaur a...

They find in the tail of a dinosaur a tumor that today affects children

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ABC Science

Madrid

Updated:02/15/2020 01: 38h

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Scientists at the University of Tel Aviv (TAU) in Israel have found remains of a tumor 60 million years ago in the tail of a young dinosaur which is related to a current human disease. Hila may, a researcher at the Department of Anatomy and Anthropology at the TAU Sackler School of Medicine and the Dan David Center for Human Evolution and Biohistory Research, and her team identified this benign tumor as part of the pathology of HCL (Langerhans cell histiocytosis), a rare condition that still affects people, especially those children under 10 years.

«Professors Rothschild and Tanke found something unusual in the tail vertebrae of a young hadrosaurid, common in the world ago 66-80 million years», Says May in reference to Bruce Rothschildfrom the University of Indiana and Darren Tanke, from the Royal Museum of Paleontology, who along with Frank Rühli, from the University of Zurich, also contributed to the research published in the journal “Scientific Reports”. This group was also known as “duck-billed dinosaurs,” for the appearance of its mouth with bird beaks. However, that was not what alarmed the researchers. “There were large cavities in two of the segments of the vertebrae, which were unearthed in Dinosaur Provincial Park in southern Alberta, Canada.”

Photograph of the largest hadrosaur vertebra in lateral view (left) and caudal view (right). The tumor is in the gap seen on the right. – Assaf Ehrenreich, Sackler School of Medicine, Tel Aviv University.

Strange cavities

It was the strange shape of these cavities that attracted the attention of the researchers. “They were extremely similar to those produced by tumors associated with rare HLC disease that still exists today in humans (…) Most HCL-related tumors, which can be very painful, suddenly appear in the bones of children from 2 to 10 years. Fortunately, these tumors disappear without intervention in many cases ».

The vertebrae of the tail of the dinosaur were sent for an advanced micro-CT scan to the Institute of Anthropology of the Shmunis Family, at the Dan David Center for Human Evolution and Biohistory Research of the TAU. «We scan the dinosaur vertebrae and create a 3D computerized reconstruction of the tumor and the blood vessels that fed it. The micro and macro analyzes confirmed that, in fact, it was HCL. This is the first time this disease has been identified in a dinosaur, ”says May.

Location of the pathological vertebrae in a hadrosaur skeleton (a). Skeletal reconstruction of Campione and Evans 79. Both small (b, c) and large (d, e) pathological vertebrae come from the distal part of the tail of the hadrodsaurus. Note the large oval-shaped cavities that open to the caudal disc surface.
Location of the pathological vertebrae in a hadrosaur skeleton (a). Skeletal reconstruction of Campione and Evans 79. Both small (b, c) and large (d, e) pathological vertebrae come from the distal part of the tail of the hadrodsaurus. Note the large oval-shaped cavities that open to the caudal disc surface. – NATURE

According to the researcher, the surprising findings indicate that the disease It is not exclusive to our race and that would have survived for more than 60 million years. “We are trying to understand why certain diseases survive evolution in order to decipher what causes them to develop new and effective ways to treat them,” said Israel Hershkovitz, of the Department of Anatomy and Anthropology at TAU.

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